XBR-55X905A, XBR-65X905A - Sony TV Service Manual (repair manual). Page 22

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XBR-55X905A/65X905A 17
SECTION 3 - REPAIR INFORMATION
REPLACING THE POWER SUPPLY BOARD
1.  Disconnect all connectors from the Power Supply Boards.
2.  Remove all screws from the board to be replaced and lift to detach.
3.  Install the new Power Supply Board, screws and connectors.
4.  Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version. 
Instructions are included with the Software package on the Sony 
website.
a.  Insert the USB device with the latest Software into the TV.
b.  Press 
POWER
 to turn on the TV.
c.  Wait until the Software update is complete and the TV turns OFF.
REPLACING THE TCON BOARD
The TCON Board used in this model is available for repair. For Part Number 
information refer to
 
Section 4 - Exploded View/Part Number Information on 
page 25.
FOR XBR-55X905A MODELS ONLY
1.  Remove 3 screws from Bracket, Neck and lift as shown to detach.
Bracket,
Neck
Bracket,
Neck
2.  Remove 1 screw from Bracket, Under and lift as shown to detach.
Bracket,
Under
Bracket,
Under
3.  Carefuly, remove Al Sheet adhesive tape.
 
NOTE:
 Order this part (4-455-609-01 Al Sheet) when replacing TCON 
Board. 
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